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Johns Hopkins Bloomberg School of Public HealthCAAT

Johns Hopkins University
Center for Alternatives to Animal Testing

We believe the best science is humane science. Our programs seek to provide a better, safer, more humane future for people and animals. To learn more about CAAT and the 3Rs, visit our About Us page. And consider supporting our mission.


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CAAT News and Upcoming Events

News and upcoming events sponsored by CAAT, CAAT-Europe, and the Transatlantic Think Tank for Toxicology (t4).

2022-2023 Alan and Helene Goldberg Grant Awardees. (previously known as CAAT Grant)

Microphysiological Systems World Summit

Hybrid Conference (In-person and virtual)
May 30-June 3, 2022
Hilton Riverside, New Orleans, LA

New Videos available 

VIDEO: 3Rs Training Webinar series 2021

VIDEO: CAAT’s 40th Anniversary Celebration

VIDEO: Challenges and Opportunities for Overcoming Dog Use in Agro-chemical Evaluation and Registration

VIDEO: Alternative approaches in Developmental Neurotoxicity - a farewell symposium for CAAT’s deputy director Helena Hogberg


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CAAT and CAAT-Europe promise sound scientific synergy involving experts from both sides of the Atlantic to promote the implementation of human-relevant alternative approaches, the advancement of research, and the dissemination of the 3Rs.

CAAT-Europe is housed at the University of Konstanz, Germany.


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CAATwalk Newsletters

Sign up for our CAATwalk Newsletter for the latest news about our activities! 

View the latest CAATwalk Newsletter

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